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ARM: dts: qcom: msm8974-hammerhead: add device tree bindings for mpu6515

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This patch adds device tree bindings for the mpu6515 to the LG Nexus 5
(hammerhead) phone. Confirmed that the gyroscope / accelerometer
(mpu6515), magnetometer (ak8963), and temperature / pressure (bmp280)
sensors are available on the phone.

Interrupts are not working properly on the ak8963 magnetometer so they
are currently not configured.

The bmp280 retuns temperature/pressure measurement skipped errors but
will reliably work if I run:

    echo 1 > in_pressure_oversampling_ratio
    echo 1 > in_temp_oversampling_ratio

Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
This commit is contained in:
Brian Masney 2018-08-02 20:18:53 -04:00 committed by Andy Gross
parent 14e63a953a
commit fe8d81fe7d
2 changed files with 67 additions and 0 deletions
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56
arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
View File

@ -241,6 +241,24 @@ cmd-data {
bias-pull-up;
};
};
i2c12_pins: i2c12 {
mux {
pins = "gpio87", "gpio88";
function = "blsp_i2c12";
drive-strength = <2>;
bias-disable;
};
};
mpu6515_pin: mpu6515 {
irq {
pins = "gpio73";
function = "gpio";
bias-disable;
input-enable;
};
};
};
sdhci@f9824900 {
@ -277,6 +295,44 @@ volume-down {
linux,code = <KEY_VOLUMEDOWN>;
};
};
i2c@f9968000 {
status = "ok";
pinctrl-names = "default";
pinctrl-0 = <&i2c12_pins>;
clock-frequency = <100000>;
qcom,src-freq = <50000000>;
mpu6515@68 {
compatible = "invensense,mpu6515";
reg = <0x68>;
interrupts-extended = <&msmgpio 73 IRQ_TYPE_EDGE_FALLING>;
vddio-supply = <&pm8941_lvs1>;
pinctrl-names = "default";
pinctrl-0 = <&mpu6515_pin>;
i2c-gate {
#address-cells = <1>;
#size-cells = <0>;
ak8963@f {
compatible = "asahi-kasei,ak8963";
reg = <0x0f>;
// Currently only works in polling mode.
// gpios = <&msmgpio 61 0>;
vid-supply = <&pm8941_lvs1>;
vdd-supply = <&pm8941_l17>;
};
bmp280@76 {
compatible = "bosch,bmp280";
reg = <0x76>;
vdda-supply = <&pm8941_lvs1>;
vddd-supply = <&pm8941_l17>;
};
};
};
};
};
&spmi_bus {

11
arch/arm/boot/dts/qcom-msm8974.dtsi
View File

@ -739,6 +739,17 @@ blsp_i2c11: i2c@f9967000 {
dma-names = "tx", "rx";
};
blsp_i2c12: i2c@f9968000 {
status = "disabled";
compatible = "qcom,i2c-qup-v2.1.1";
reg = <0xf9968000 0x1000>;
interrupts = <0 106 IRQ_TYPE_NONE>;
clocks = <&gcc GCC_BLSP2_QUP6_I2C_APPS_CLK>, <&gcc GCC_BLSP2_AHB_CLK>;
clock-names = "core", "iface";
#address-cells = <1>;
#size-cells = <0>;
};
spmi_bus: spmi@fc4cf000 {
compatible = "qcom,spmi-pmic-arb";
reg-names = "core", "intr", "cnfg";